Finding the Fourth Proportional to 197,122.05, 272,028.42 and 107,698.05
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Solution
The fourth proportional to 197,122.05, 272,028.42 and 107,698.05 is: 148,623.30
Step by Step Solution
- Step 1: Write the proportion equation
197,122.05 : 272,028.42 = 107,698.05 : x - Step 2: Convert to fraction form
197,122.05/272,028.42 = 107,698.05/x - Step 3: Cross multiply
197,122.05x = 272,028.42 × 107,698.05 - Step 4: Simplify right side
197,122.05x = 29,296,930,378.58 - Step 5: Solve for x
x = 29,296,930,378.58/197,122.05 - Step 6: Final answer
x = 148,623.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.